import csv
from datetime import datetime

from matplotlib import pyplot as plt

filename='sitka_weather_07-2014.csv'

with open(filename) as f:
	reader=csv.reader(f)
	header_row=next(reader)
	# print(header_row)

	# for index,column_header in enumerate(header_row):
	# 	print(index,column_header)

	# 获取所有日期的最高温度
	hights,dates=[],[]
	for row in reader:
		current_date=datetime.strptime(row[0],'%Y-%m-%d')
		dates.append(current_date)
		hights.append(int(row[1]))

	print(hights)

# 绘制折线图
fig=plt.figure(dpi=128,figsize=(10,6))
plt.plot(dates,hights,c='red')

# 设置图形格式
fig.autofmt_xdate()
plt.title('2014',fontsize=24)
plt.xlabel('',fontsize=16)
plt.ylabel("Temperature (F)",fontsize=16)
plt.tick_params(axis='both',which='major',labelsize=16)

plt.show()
